about summary refs log tree commit diff
path: root/sysdeps/generic/s_significand.c
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>1999-07-14 00:54:57 +0000
committerUlrich Drepper <drepper@redhat.com>1999-07-14 00:54:57 +0000
commitabfbdde177c3a7155070dda1b2cdc8292054cc26 (patch)
treee021306b596381fbf8311d2b7eb294e918ff17c8 /sysdeps/generic/s_significand.c
parent86421aa57ecfd70963ae66848bd6a6dd3b8e0fe6 (diff)
downloadglibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.tar.gz
glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.tar.xz
glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.zip
Update.
Diffstat (limited to 'sysdeps/generic/s_significand.c')
-rw-r--r--sysdeps/generic/s_significand.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/sysdeps/generic/s_significand.c b/sysdeps/generic/s_significand.c
new file mode 100644
index 0000000000..4ab078c473
--- /dev/null
+++ b/sysdeps/generic/s_significand.c
@@ -0,0 +1,39 @@
+/* @(#)s_signif.c 5.1 93/09/24 */
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: s_significand.c,v 1.6 1995/05/10 20:48:11 jtc Exp $";
+#endif
+
+/*
+ * significand(x) computes just
+ * 	scalb(x, (double) -ilogb(x)),
+ * for exercising the fraction-part(F) IEEE 754-1985 test vector.
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+	double __significand(double x)
+#else
+	double __significand(x)
+	double x;
+#endif
+{
+	return __ieee754_scalb(x,(double) -ilogb(x));
+}
+weak_alias (__significand, significand)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__significand, __significandl)
+weak_alias (__significand, significandl)
+#endif